Submarine raising apparatus



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SUBMARINE RAISING APPARATUS Filed April 29, 1942 3, Sheets-Shget 1 Inventor SELMEI? H0LTE RUD.

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SUBMARINE RAISING APPARATUS Filed April 29, 1942 5 Sheets-Sheet 3 I nuentor .S'ELMER Harm un.

WWW BMW- Patented Sept. 22, 1942 UNITED STATES PATENT OFFICE SUBMARINE RAISING APPARATUS Selmer Holterud, Duluth, Minn.

Application April 29, 1942, Serial No. 441,027

1 Claim.

Figure 1 represents a side elevaticnal view showing one of the buoys still in place and a rescue ship establishing one connection with the submarine.

Figure 2 is a fragmentary vertical sectional view showing the connection of one of the buoys to the submarine.

Figure 3 is a top plan view of one of the anchoring units,

Figure 4 is a fragmentary sectional view showing one of the clam hooks connected with one of the anchoring units.

Figure 5 is a fragmentary side elevational view of the structure shown in Figure 4.

Referring to the drawings wherein like numerals designate like parts, it can be seen that numeral 5 denotes the hull of a submarine, which has preferably at its fore and aft portion and upon its deck, anchoring units generally referred by numeral 5. Each of these anchoring units comprises a horizontal bar I connected by depending formations 8 to a base plate 9 which is attached by bolts or some other means to the submarine 5 and as shown in Figure 2, it may be preferable to install anchor rods or the like III, even extending down to the keel of the boat to insure a positive attachment of the anchoring unit to the submarine hull.

Associated with each anchoring unit 8 is a buoy I I which has eyes I2, I2 on the bottom thereof to which are attached cables I3, I3 extending downwardly to yokes I4, I4 pivotally secured as at I5 to the formations 8 of the corresponding anchoring unit 6.

As is apparent, there will be one of these buoys for each end of the same and it may be found desirable to install in these buoys I I a small radio broadcasting set I6 for sending S O S signals. It may also be found desirable to provide an outlet I! for smoke and installing some suitable means in the buoy II for sending off a limited quantity of smoke producing material.

In Figure 1 numeral I8 denotes a rescue boat which will have a reel I9 thereon wound with a cable 20, which at its outer end will be provided with a clam hook generally referred to by numeral 2 I.

The clam hook 2I includes a pair of interlappable hooks 22, 22, each beveled as at 23 to permit easy riding over of the corresponding anchor bar I. These hook members 22, 22 are bifurcated and straddle a carrier plate 24 and pins 25 pivotally connect the bifurcated ends of the hooks to the said plate 24.

The upper end of the plate 24 has an opening 26 therein through which a hook or ring 21 at the lower end of the 'cable 20 is disposed.

Through the central portion of the plate 24 is disposed a bar 28 carrying vertically disposed tubes 29, 29 at the end portions thereof.

In operation, a rescue ship I8 discovering the preferably colored buoys I I will anchor the upper ends of the cables I3, I3 and one of the buoys in order to remove the buoy, subsequently place the tubes 29, 29 on the cables I3 ,I3 and then lower the clam hook 2 I As the clam hook 2I rides down the cables I3, I3 and reaches the lower ends thereof, it will strike the anchor bar I, riding over the same and hooking in place in the position shown in Figure 4.

The rescue ship I8 can now move to the remaining buoy, after shifting the reel I9 aft of the rescue ship and perform the same operation in connection with the second buoy.

While the foregoing specification sets forth the invention in specific terms, it is to be understood that numerous changes in the shape, size and materials may be resorted to without departing 7 from the spirit and scope of the invention as claimed hereinafter.

Having described the invention, what is claimed as new is:

The combination with a submarine, of means to raise the submarine from a submerged position comprising a rescue ship, a yoke fixed on said submarine, a buoy, a pair of cables having ends fixed to said yoke in spaced apart relation and opposite ends attachable to said buoy for extension of the cables upwardly by rise of the buoy to the surface, said attached ends of the cables being detachable for disposal over the side of the ship, a reel on said ship having a hoisting cable thereon for lowering over the side of the ship to be attached at one end thereof to said yoke, means on said hoisting cable for slidably connecting the same to said pair of cables intermediate the latter to guide the hoisting cable down to said yoke and comprising a plate suspended from the hoisting cable, a pair of tubes fixed to said plate at opposite sides thereof and adapted for extension of said pair of cables therethrough, and means to attach said hoisting cable to said yoke comprising a pair of pivoted hooks on said plate for straddling the yoke and engaging beneath the same.

SELMER HOLTERUD. 

